How to create a custom attribute that will redirect to Login if it returns false, similar to the Authorize attribute - ASP.NET MVC

Question

I tried Googling a few things about custom attributes but I\'m still not sure how to go about it....

I\'m storing a few important details of the user in Session cook

Answer 1

You can create your own version of the Authorize attribute by implementing the IAuthorizationFilter interface. Here's an example:

class MyCustomFilter : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        if (filterContext.HttpContext.Session["UserID"] == null)
        {
            filterContext.Result = new RedirectResult("/");
        }
    }
}

and a usage example:

[MyCustomFilter]
public ActionResult About()
{
    ViewBag.Message = "Your application description page.";

    return View();
}